.pro_img{
	width: 481px;
	background-color: #f6f6f6;
	overflow: hidden;
	border-right: 1px solid #b9b9b9;
}
/*大图*/
.big_img{
	width: 189px;
	height: 251px;
	margin: 0 auto;
	margin-bottom: 14px;
	margin-top: 57px;
}
.big_img img{
	width: 100%;
	display: none;
}
/*.big_img img:nth-of-type(1){
	display: block;
}*/
/*小图*/
.small_img{
	overflow: hidden;	
}
.big_img input[type="radio"]{
	display: none;
}
.img{
	float: left;
	width: 96px;
	height: 91px;
	overflow: hidden;
	border: 1px solid #b9b9b9;
	border-right: none;
}
.img img{
	width: 100%;
}
.big_img input[type="radio"]:checked+img{
	display: block;
}
